lessons and questions on clipping

[skittlesRgood]

i want this to be a very helpful topic. if you have knowledge of what im talking about please give as much detail as possible.

i got a tone generator for xmas and ive setup a little testing station in my room. i quickly found out that if i set the gains with a 1000hz tone i would get very bad clipping when i droped the frequency to 250~hz. i thought this was pretty interesting seeing as how this is how everyone is told to set the gains for the mids and highs. i didnt use the dmm at all in this so its not exactly how everyone sets gains but it gives me an idea of a potential problem. i made a couple little videos to help explain.

so here you can see that even though the volume was not changed, when the frequency was lowered it started to clip. but when i raise the frequency i didnt get it to clip. of corse i didnt try anything over 5khz so who knows whats going on up there. it got too annoying hearing something so high pitch lol. anyways, perhaps some of you could help me test this out. set your gains for your mids/highs with a 80hz tone instead and tell me if you get better low end responce from your mids. also report how your highs are effected if they are on the same channel.

this is very early testing, i may have been doing something wrong but it seems pretty straight forward so far. if anyone sees any flaws in how i did this please go ahead and comment.

[skittlesRgood]

huh... i thought for sure that decaf would have left some info for this.

bump

[thehoe92]

I would also like to know I just got my first 2 channel so tuning it is beyond me.. I used a 1k hz tone and used an oscope but this could be interesting.

[skittlesRgood]

I would also like to know I just got my first 2 channel so tuning it is beyond me.. I used a 1k hz tone and used an oscope but this could be interesting.

interesting indeed... i think tomorrow ill setup both speakers and set the gains with a dmm just like you normally would and see if this still happens. just need to find my damn DMM lol. ill report what i find.

i need to make a little box for these speakers, they are jumping around on the table on anything below 300hz lol

[JZeFF]

This seems to raise a good argument as to normal tuning procedures.. Im waiting for someone to say why this doesnt matter, lol.

But i will be tuned in for any answers, and hopefully some testing??

[Boon]

Lower frequencies require more current from the amp... as you increase current, efficiency of the amp decreases and the rail voltage goes down. Hence you get into clipping.

[skittlesRgood]

so if you set you amp with a 1000hz tone you will almost always be clipping down below 100hz? i mean, if everyone is setting gains at a high fs isnt this a problem?

[mr.p]

i set mine unloaded for subs i use a 40hz for subwoofer. midbass i used a 100hz tone, and for mids and highs a 1000hz+

i then plug the speaker in and play its lowest frequency (your subsonic point or crossover point) And i roll into the volume and make sure the speaker can MECHANICALLY handle the power im giving it at its LOWEST frequency.

This is really nice when doing a 3way to make sure you have your crossover and or subsonic slopes set correctly....so when theres a low note in the song it doesnt tear itself apart.

[Ray]

i set mine unloaded for subs i use a 40hz for subwoofer. midbass i used a 100hz tone, and for mids and highs a 1000hz+

i then plug the speaker in and play its lowest frequency (your subsonic point or crossover point) And i roll into the volume and make sure the speaker can MECHANICALLY handle the power im giving it at its LOWEST frequency.

This is really nice when doing a 3way to make sure you have your crossover and or subsonic slopes set correctly....so when theres a low note in the song it doesnt tear itself apart.

bingo.

i use 50hz on subs, 150 on mids and 1k for everything else.

Remember if you are using a 0db tone ... your music will never reach that most likely.

then I will play a very heavy track and check the scope again.

your normal BR track work well for this.

rubberbands, jeezy, etc.